Fuel Additives for Kubotas

joesco · Jan 16, 2017

I've used PRI-D for about 10 years now and never had a issue in my diesel tractors and generators. I always have 50 Gallons on hand. The old timer that told me about it said it will extend the shelf life to 5 years or more under the right conditions, dry location and a pretty air tight drum.

rScotty · Jan 21, 2017

carlhwv said:
Understand that...it was a pi55 poor planing emergency on my part..I dis my yearly draining of the big tank and missed my refill....but I just don't remember clear having the greenish yellow color is all. Wondering if it's the unknown bio component or the additional refining for ulsd is what is giving it its tint.

Well, it may not be so easy. Red diesel is dyed that way to show it is for off-road, but for straight diesel you may get all kinds of different answers when you start talking about a "greenish-yellow color". Most painters and artists know that its pretty common for people so see those particular yellow/green shades differently. You can find quite a bit written about the complexity of that particular color mix in vision literature.

Basically some will see the color as yellow, some see it as green, and some as a distinct color which they might call "greenish-yellow" ... or perhaps they call it chartreuse. Some say it is a shade of yellow, another describe it as a shade of green, and another just as passionately saying that chartreuse is a specific primary color and not a mix of colors at all. One thing for sure is that everyone is absolutely convinced that the way they see it is the right way....

FWIW, I always buy a straight road diesel that doesn't have any bio diesel in it at all. And when I fuel the tractor with that straight diesel it has always looked greenish-yellow to me. The color is so definite and so easy to see against the white funnel that I look for that color as a check that I've opened the proper tap and am pouring diesel fuel. To my eye, kerosene is a different color and paint thinner is water clear. But that's just me....
YMMV,
rScotty

carlhwv · Jan 21, 2017

rScotty said:
Well, it may not be so easy. Red diesel is dyed that way to show it is for off-road, but for straight diesel you may get all kinds of different answers when you start talking about a "greenish-yellow color". Most painters and artists know that its pretty common for people so see those particular yellow/green shades differently. You can find quite a bit written about the complexity of that particular color mix in vision literature.

Basically some will see the color as yellow, some see it as green, and some as a distinct color which they might call "greenish-yellow" ... or perhaps they call it chartreuse. Some say it is a shade of yellow, another describe it as a shade of green, and another just as passionately saying that chartreuse is a specific primary color and not a mix of colors at all. One thing for sure is that everyone is absolutely convinced that the way they see it is the right way....

FWIW, I always buy a straight road diesel that doesn't have any bio diesel in it at all. And when I fuel the tractor with that straight diesel it has always looked greenish-yellow to me. The color is so definite and so easy to see against the white funnel that I look for that color as a check that I've opened the proper tap and am pouring diesel fuel. To my eye, kerosene is a different color and paint thinner is water clear. But that's just me....
YMMV,
rScotty

Fuel from the dealer where I got to fuel with the color I mentioned is giving me 10% better mileage in my f350 than other stations, for what it's worth it definitely has the color I think we are speaking of where other brands don't.

JWR · Jan 21, 2017

Quoting Scotty: I always buy a straight road diesel that doesn't have any bio diesel in it at all. And when I fuel the tractor with that straight diesel it has always looked greenish-yellow to me. The color is so definite and so easy to see against the white funnel that I look for that color as a check that I've opened the proper tap and am pouring diesel fuel. To my eye, kerosene is a different color and paint thinner is water clear. But that's just me....Scotty
No, it is not just you. Plain old road diesel fuel pours greenish-yellow. Home heating oil (good old #2 with dye) is red. So is the off-road diesel I sometimes buy at equipment supply locations. Kerosene is more nearly clear and paint thinner (being mineral spirits and what Esso called "Varsol" in the old days ) is clear as water. I find that exact same set of colors and description from multiple sources in both southern MD and central WV.

lilranch2001 · Jan 21, 2017

I am going to have to pay more attention the next time I fuel up.
I think I would have noticed a yellow green color and been concerned I was buying old stale fuel.
Since I pour from 5 gallon jugs and stand there watching for quite a few minutes I would have thought I would have noticed colored fuel.....

carlhwv · Jan 24, 2017

lilranch2001 said:
I am going to have to pay more attention the next time I fuel up.
I think I would have noticed a yellow green color and been concerned I was buying old stale fuel.
Since I pour from 5 gallon jugs and stand there watching for quite a few minutes I would have thought I would have noticed colored fuel.....

I noticed the color when I was pouring from a jerry can into a funnel while filling the tractor. For me anyway, the yellow-green color was quite obvious against the backdrop of snow covered ground.